| /******************************************************************************* |
| * Copyright (c) 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.core.util; |
| |
| import org.eclipse.jdt.core.util.ClassFormatException; |
| import org.eclipse.jdt.core.util.IAnnotation; |
| import org.eclipse.jdt.core.util.IAnnotationComponent; |
| import org.eclipse.jdt.core.util.IConstantPool; |
| import org.eclipse.jdt.core.util.IConstantPoolConstant; |
| import org.eclipse.jdt.core.util.IConstantPoolEntry; |
| |
| /** |
| * Default implementation of IAnnotation |
| */ |
| public class Annotation extends ClassFileStruct implements IAnnotation { |
| |
| private static final IAnnotationComponent[] NO_ENTRIES = new IAnnotationComponent[0]; |
| |
| private int typeIndex; |
| private char[] typeName; |
| private int componentsNumber; |
| private IAnnotationComponent[] components; |
| private int readOffset; |
| |
| /** |
| * Constructor for Annotation. |
| * |
| * @param classFileBytes |
| * @param constantPool |
| * @param offset |
| * @throws ClassFormatException |
| */ |
| public Annotation( |
| byte[] classFileBytes, |
| IConstantPool constantPool, |
| int offset) throws ClassFormatException { |
| |
| final int index = u2At(classFileBytes, 0, offset); |
| this.typeIndex = index; |
| if (index != 0) { |
| IConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(index); |
| if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Utf8) { |
| throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY); |
| } |
| this.typeName = constantPoolEntry.getUtf8Value(); |
| } else { |
| throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY); |
| } |
| final int length = u2At(classFileBytes, 2, offset); |
| this.componentsNumber = length; |
| this.readOffset = 4; |
| if (length != 0) { |
| this.components = new IAnnotationComponent[length]; |
| for (int i = 0; i < length; i++) { |
| AnnotationComponent component = new AnnotationComponent(classFileBytes, constantPool, offset + readOffset); |
| this.components[i] = component; |
| this.readOffset += component.sizeInBytes(); |
| } |
| } else { |
| this.components = NO_ENTRIES; |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.core.util.IAnnotation#getTypeIndex() |
| */ |
| public int getTypeIndex() { |
| return this.typeIndex; |
| } |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.core.util.IAnnotation#getComponentsNumber() |
| */ |
| public int getComponentsNumber() { |
| return this.componentsNumber; |
| } |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.core.util.IAnnotation#getComponents() |
| */ |
| public IAnnotationComponent[] getComponents() { |
| return this.components; |
| } |
| |
| int sizeInBytes() { |
| return this.readOffset; |
| } |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.core.util.IAnnotation#getTypeName() |
| */ |
| public char[] getTypeName() { |
| return this.typeName; |
| } |
| } |